Shibetsu in Summer
In summer (June, July and August), Shibetsu sees average daytime highs around 18°C and overnight lows near 13°C, with 347 mm of rain over about 34 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Over the season highs climb from about 14°C in early June to 20°C by late August. The sky is clear or mostly clear about 12% of the time across summer, and the air most often feels dry.
Summer is Shibetsu's best season of the year to visit on our travel score. For the whole year in context, see Shibetsu's year-round climate.
- Avg daytime high
- 18°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 347 mm
- 34 wet days
- Avg wind
- 12 km/h
- Travel score
- 5.2
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Shibetsu in Summer
Over the season highs climb from about 14°C in early June to 20°C by late August.
A typical summer day in Shibetsu reaches about 18°C and drops to 13°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Shibetsu
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Shibetsu weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -3° / -9° | 59 | 8.7 | 10.7 | 9.1 | 0.0 |
| Feb | -3° / -10° | 48 | 6.9 | 7.7 | 10.2 | 0.0 |
| Mar | 1° / -6° | 76 | 9.8 | 9 | 11.6 | 0.0 |
| Apr | 6° / -0° | 86 | 11.2 | 5 | 13.2 | 0.7 |
| May | 11° / 5° | 96 | 11.2 | 0.6 | 14.5 | 2.8 |
| Jun | 15° / 9° | 83 | 10.1 | 0 | 15.2 | 4.3 |
| Jul | 18° / 13° | 115 | 11.1 | 0 | 14.9 | 5.5 |
| Aug | 21° / 16° | 150 | 12.4 | 0 | 13.8 | 5.7 |
| Sep | 19° / 13° | 166 | 12.5 | 0 | 12.3 | 5.5 |
| Oct | 14° / 8° | 127 | 11.1 | 0.1 | 10.8 | 3.9 |
| Nov | 7° / 2° | 87 | 11.2 | 2.9 | 9.5 | 1.0 |
| Dec | 1° / -5° | 78 | 9.7 | 9.6 | 8.8 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 12% of the time across summer.
Chance of precipitation in Summer
Shibetsu gets around 347 mm of rain over 34 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 hours in early June to 13 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 4.7 kWh/m².
Hazard calendar for Shibetsu
In summer, Shibetsu overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Shibetsu sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Shibetsu?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Shibetsu for sightseeing.
What to pack for Shibetsu in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Shibetsu sees daytime highs around 18°C and nights near 13°C. Worth packing: a warm layer, rain gear and sun protection. About 34 days see rain.
Sea temperature near Shibetsu in Summer
The nearest coast averages about 13°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 17°C and coldest in February near -0°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 2 | 0 | 0 | 2 | 5 | 9 | 13 | 17 | 17 | 14 | 10 | 5 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 2 | Bracing |
| Feb | 0 | Bracing |
| Mar | 0 | Bracing |
| Apr | 2 | Bracing |
| May | 5 | Bracing |
| Jun | 9 | Bracing |
| Jul | 13 | Bracing |
| Aug | 17 | Cool |
| Sep | 17 | Cool |
| Oct | 14 | Bracing |
| Nov | 10 | Bracing |
| Dec | 5 | Bracing |
UV index in Shibetsu in Summer
Clear-sky midday UV across summer averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Shibetsu peaks around August 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 7 | 7 | 6 | 9 | 6 | 4 | 2 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | High |
| Jun | 7 | High |
| Jul | 6 | High |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Shibetsu?
Shibetsu sits at 43.7°N, 145.1°E, 2 m above sea level, in Japan. The nearest listed city is Nakashibetsu, 18 km away.
Topography around Shibetsu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Shibetsu.
Within 3 km, the terrain around Shibetsu has only modest variations in elevation — a maximum elevation change of 35 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 482 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,608 m.
The land around Shibetsu is covered by water (43%) and trees (31%) within 3 km, water (45%) and trees (27%) within 16 km, and water (55%) and trees (31%) within 80 km.
Japan travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 100 V · 50 / 60 Hz
- Prices
- ≈ 65% of US
- price level, 2025
- GDP per capita
- $35,951
- 2025
- Happiness
- 6.1 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.2
- per 100k, 2023
- Road deaths
- 3.6
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very low
- EF EPI 446
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Shibetsu (43.659°, 145.132°, elevation 2 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.